Methicillin Resistant Staphylococcus Aureus

Methicillin-resistant Staphylococcus aureus (MRSA) is a bacterium responsible for several difficult-to-treat infections in humans. It is also called multidrug-resistant Staphylococcus aureus and oxacillin-resistant Staphylococcus aureus (ORSA). MRSA is any strain of Staphylococcus aureus that has evolved resistance to beta-lactam antibiotics, which include the penicillins (methicillin, dicloxacillin, nafcillin, oxacillin, etc.) and the cephalosporins. The development of such resistance does not cause the organism to be more intrinsically virulent than strains of Staphylococcus aureus that have no antibiotic resistance, but resistance does make MRSA infection more difficult to treat with standard types of antibiotics and thus more dangerous.

MRSA is especially troublesome in hospitals and nursing homes, where patients with open wounds, invasive devices, and weakened immune systems are at greater risk of infection than the general public.

This text uses material from Wikipedia licensed under CC BY-SA

Latest Spotlight News

Schizophrenic brains take indirect paths

Analysis of the structural connectivity in the brains of 16 schizophrenia patients reveals several zones affected by the disease and their reduced network connectivity.

New drugs from fish oil could aid artery repair

Every year, more than a half-million Americans undergo procedures to have a narrowed coronary artery propped open with a small metal mesh tube, or stent. The procedure is common for certain patients who've ...